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Birches or Betula are among the most attractive and common trees in the landscape and in gardens. The Genus Betula is the first monograph published on this plant group, the species …
Hardy Heathers is a fully illustrated monograph that describes all Calluna, Daboecia and those Erica species that grow naturally in the northern hemisphere. Distribution, history, …
This, the first major work on Cymbidium, since the authors’ classic work published in 1988, is a completely new treatment covering all current known species. Their biology, a …